Engel BBTSLKIT incorporates the TSL27 Slide Lok (with screws & feet) and the two metal plates which, when fitted, will allow you to have your Battery Box securely in place whilst travelling but then be able to remove it from the vehicle when not required.

The Adaptor Plates can be purchased separately at a cost of $25 but, if not used with a Transit Slide Lok, the Battery Box would be a permanent fixture of wherever it is mounted.